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(No Model.) v

A. Ww. HAZBLRIGG.

' SIGNAL LANTERN. Nossazogq' Patented May 1o, 1881.v

@vwl/Lesmo 344/0044160@ fmmwf @Mv- N. PETERS. Pholmlilhogmphor.Washington. D4 (L UNITED STATES PATENT GEEICEO ALBERT W. HAZELRIGG, OFINDIANAPOLIS, INDIANA.

SIGNAL-LANTE'RN.

SPECIFICATION forming part of LettersPatent No. 362.509, dated May 10,1887.

Application tiled October 25, 1886. Serial No. 217,102. (No model.)

myself and others.

The objects of my improvements are to provide improved means foroperating the screwslotted cylinderby means of which the colored glassshade is raised and lowered, and improved means for preventing theshade-support from revolving, all as hereinafter fully described.

The accompanying drawings illustrate my invention.

Figure 1 is a plan view of the device, partly broken away. Fig. 2 is asidehelevation of a lantern-lamp having my improvements, onehalf beingshown in section.

A is the oil-reservoir.

B is the base-plate, having a central depression, c, in which theoil-reservoir A is mounted. A metallic cylinder, D, having spiralgrooves d in its periphery, is arranged to t over and turn freely uponthe outside of the oil-reservoir. A metallic ring, g, is arranged toslide easily over cylinder D, and is provided with studs h, whichproject inward and engage the spiral grooves in the cylinder.

For the purpose of preventing the ring g from revolving about theoil-reservoir while being moved vertically by the rotation of thecylinder D, one or more of the st uds h proj eets inward beyond thecylinder D and engages a vertical grooved guide, t', formed in theoilreservoir or secured thereto.

Ring g supports a red or other colored tubular glass shade, j, which hasa flange, 7c, on its lower edge, and is held in place on the ring byspring-clips Z,wh ich are secured to the ring and engage said ange.

For the purpose of preventing the cylinder D from sliding upward, awasher, m, having radial arms u, which engage and rest upon the upperedge of the cylinder, is secured to the top of the oil-reservoir by theburner o. The red shade is raised or lowered by the revolution of thecylinder D, ring g being prevented from turning with the cylinder by thestud h engaging the grooved vertical guide z'.

In my former invention the revolution ot' the cylinder was effected bythe operator taking hold of the lug which projected from the lower edgeof the cylinder downward through a semicircular slot in the base. Saidslot greatly weakened the base, and to avoid this difficulty I secureupon the outer surface of cylinder D, near its lower edge, a toothedrack, p, which is engaged by a small gearwheel, r, jonrnaled in suitablebearings in the side of the central depression, c, of the base. Thecylinder is revolved by the operator turning the wheel r.

The combination, with the base and the reservoir of a signalvlantern,the former formed with a depressed portion, c, of the spirallygroovedcylinder fitting loosely over said reservoir, so as to turn thereon, andprovided with toothed rack p, the shade-support havinginwardly-projecting studs which engage the grooves in the cylinder, avertical guide for lsaid support, the shade, and gear-wheel r, all

combined and arranged to co-operate in the manner and for the purposespecitied. ALBERT W. HAZELRIGGn* lVitncss'es:

H. P. Hoon, V. M. Hoon.

